Calculate the Atomic Mass of the Element Having the Following

Multiple Choice

Calculate the atomic mass of the element having the following distribution of isotopes:
5.8% 53.9396 u
91.8% 55.9349 u
2.1% 56.9354 u
0.3% 57.9333 u

A) 51.3 u
B) 55.8 u
C) 55.9349 u
D) 56.2 u
E) 5.58 × 10³ u